garlic-decompiler is a powerful Java decompiler built using C, designed to convert Java bytecode from .class, .jar, or .war files back into readable Java source code. This tool is essential for developers looking to understand or recover Java code from compiled binaries.

Key Features

• Decompilation of .class files: Easily retrieve source code from individual class files.
• Jar file support: Decompile complete Java archives (.jar) with options to specify output paths and manage threads effectively.
• War file capabilities: Decompile web application archive files (.war) to access underlying source code.

Usage Examples

To decompile a .class file and output the result to standard output:

garlic /path/to/jvm.class

For .jar files, you can use:

garlic /path/to/file.jar        # Default output is the same directory as the file

garlic /path/to/file.jar -o /path/to/save  # Specify output path for source code

garlic /path/to/file.jar -t 5    # Specify thread count, default is 4

For users familiar with javap, garlic provides similar functionality, but with improved speed:

garlic /path/to/jvm.class -p

Debugging

The main debugging functionality can be tested by modifying the main function in src/jvm.c as follows:

int main(int argc, char **argv)
{
    jar_file_analyse(path_of_jar, out_of_jar, 1);
    return 0;
}

Adjustments allow for testing with control over threading and execution parameters.

Using garlic-decompiler streamlines the reverse engineering process of Java applications, making it a valuable tool for developers and security analysts alike.